Details

Autor(en) / Beteiligte

• TAKJOO, REZA
• HASHEMZADEH, ALIREZA
• RUDBARI, HADI AMIRI
• NICOLÒ, FRANCESCO

Titel

Copper(II) and molybdenum(VI) complexes with 5-bromosalicylaldehyde S-allylisothiosemicarbazone: Syntheses, characterizations and crystal structures

Ist Teil von

• Journal of coordination chemistry, 2013-01, Vol.66 (2), p.345-357

Ort / Verlag

Abingdon: Routledge

Erscheinungsjahr

2013

Quelle

Taylor & Francis Journals Auto-Holdings Collection

Beschreibungen/Notizen

• A new tridentate Schiff base, 5-bromosalicylaldehyde S-allylisothiosemicarbazone hydrobromide (H 2 L), and several new mononuclear complexes of copper(II) and molybdenum(VI) of this ligand with general formulas ([Cu(L)Im] (1)), ([Cu(L)NH 3 ]·4H 2 O (2)), and ([MoO 2 (L)1-MeIm] (3), Imidazole: Im, 1-methylimidazole: 1-MeIm) were prepared and characterized by elemental analyses, IR, proton magnetic resonance Spectroscopy, and ultraviolet-visible techniques. The physico-chemical results suggested that the H 2 L coordinates in the dianionic tridentate form. Crystal structures of the Cu(II) complexes reveal a square planar configuration surrounded by the dianionic tridentate isothiosemicarbazone (ONN) and Im and NH 3 for 1 and 2, respectively. The L 2- , two oxo, and 1-methylimidazole are coordinated to molybdenum(VI) in a distorted octahedral geometry in 3. Formation of pure metal oxide residues was confirmed by thermal degradation of the complexes.